Other Parts Discussed in Thread: TPS61169,
Dear all:
I designed a product with BQ25606 and TPS61169, please refer to the attachment for details.Please help to check whether the PCB drawing is reasonable and whether there is any other suggestion
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Hi,
I reviewed the BQ25606 portion of your schematic and layout files. They look fine overall, but here are my comments.
Regarding your schematic:
R17 = 10 kΩ is included in your schematic, but not in your PCB layout.
Do you ever plan to use OTG? If so, you will need a way to pull the OTG pin high.
Regarding your PCB layout:
Please take a look at the layout guidelines in Section 11 of the datasheet, especially guidelines 2 and 4. The area of the copper trace from SW to the input pin of the inductor can be reduced, and it looks like you're using a single GND instead of separating this into an analog GND and a power GND. Adhering to the datasheet guidelines more closely could allow for better EMI performance and less noise. If these considerations are critical in your application, then I would recommend making the layout modifications recommended in Section 11.
Best regards,
Angelo